[Intel-gfx] [PATCH 0/4] HSW PM - RC6 fixes, clean up and split

[Rodrigo Vivi]

This series fixes a RC6 bug at HSW that can impact its performance.
At my fiurst attempt I noticed more than 1W saved, but I didn't measured this lates series yet.

Also there are 2 clean ups patches that removes unecessary registers and bits set for HSW.

The latest patch is optional. It splits hsw_enable_rps to make it more clean since the gen6_enable_rps was becoming a mess full of IS_HASWELL and probably becoming worse with new upcoming platforms.

Rodrigo Vivi (4):
  drm/i915: HSW PM Frequency bits fix
  drm/i915: HSW PM Cleaning - Removing unecessary register/bits set.
  drm/i915: HSW PM - removing pcode read/write
  drm/i915: creating Haswell rc6 function

 drivers/gpu/drm/i915/i915_reg.h |   1 +
 drivers/gpu/drm/i915/intel_pm.c | 133 +++++++++++++++++++++++++++++++++++-----
 2 files changed, 119 insertions(+), 15 deletions(-)

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1.8.1.4